The Investigation of a Simplified Vehicle Model that Can Reproduce Pedestrian Accidents

歩行者事故再現可能な簡易車両モデルの検討

Although the evaluation of pedestrian safety performance of vehicles required by regulations and new car assessment programs (NCAP) must have contributed to the reduction of pedestrian casualties, their real-world relevance has not been fully clarified. One way to develop further understanding of real-world pedestrian accidents is to reconstruct a variety of accident scenarios dynamically using computational models. Investigations using a simplified vehicle model that allows changes of vehicle stiffness characteristics in a systematic manner are effective means of reproducing various types of accidents. The baseline simplified vehicle model developed in this study consisted of four parts: the windshield, hood, bumper, and lower part of the bumper. The hood and windshield with relatively large areas were divided into smaller areas, and different stiffness characteristics were assigned to them. In addition, models without dividing the hood and windshield were developed for comparison purposes. These simplified vehicle models were made to collide at 40 km/h with a human model, and the pelvis and lower limb injury measures and full-body kinematics were compared. The results showed that the division of the hood and windshield along with the application of local stiffness distributions significantly improved the representation of pedestrian full-body trajectories and pelvis and lower limb injury measures.本研究では，さまざまな体格の歩行者と車両との衝突を適切に再現し，車体特性の影響も検討可能な車両モデルを構築するため，ボンネットを複数の剛体パネルで分割し，部位別の荷重-変位特性を反映した簡易モデルを検討した．そして，実機フルモデルおよびボンネットを分割しないモデルとの比較により有用性を検証した．

• Record URL:
  • https://doi.org/10.11351/jsaeronbun.44.1427
• Record URL:
  • http://scholar.google.com/scholar_lookup?title=The%20Investigation%20of%20a%20Simplified%20Vehicle%20Model%20that%20Can%20Reproduce%20Pedestrian%20Accidents&author=H.%20Asanuma&author=M.%20Ikeda&author=T.%20Yanaoka&author=Y.%20Takahashi&publication_year=2013
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
• Authors:
  • Asanuma, Hiroyuki
  • Ikeda, Miwako
  • Yanaoka, Toshiyuki
  • Takahashi, Yukou
• Publication Date: 2013-11

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 1427-1432
• Serial:
  • Transactions of Society of Automotive Engineers of Japan
  • Volume: 44
  • Issue Number: 6
  • Publisher: Society of Automotive Engineers of Japan
  • ISSN: 0287-8321
  • EISSN: 1883-0811
  • Serial URL: https://www.jstage.jst.go.jp/browse/jsaeronbun
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Biokinematics; Computer models; Crash reconstruction; Crash victim simulation; Pedestrian safety; Pedestrian vehicle crashes; Stiffness
• Subject Areas: Highways; Pedestrians and Bicyclists; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 01676991
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Jul 30 2018 8:31AM